Joseph bachneb



(Model.)

J. BACHNBR.

STEM WINDING WATGH.

No. 355,752. Patented Jan. A11, 1887.

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N, PETERS. Phewumogmyw, wamiugmn, D4 c UNITED STATES PATENT OFFICE@- JOSEPI-I BACIINER, OF CHICAGO, ILLINOIS, ASSIGNOR TO IIIBISELF AND GEORGE A. HARMOUNT, OF SAME PLACE.A

STEM-wlNoiNe WATCH.

SPECIFICATION forming part of Letters Patent No. 355,752, dated January 1l, 1887.

Application tiled Fehruary, 1886. SerialNo. 192,748. (Model.)

To @ZZ whom, it may concern.-

Beit known that I, JosEri-i BAcHNEn, a citizen ofthe Republic ot' France, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improve mentin Stem-finding Vatches, ol which the ibllowing is a specification.

rIhis invention relates to the stem winding and setting mechanism oi' that class ot' watches and clocks in which the shitting from the winding to the setting movement is brought about by sliding the stem, and is designed to simplify the mechanism employed.

In carrying out the invention Imalre the winding-stern capable of a slight longitudinal adjnstment, so it may he rotated .in either of tw positions, one being the winding and the other the setting position, and combine with suoli movable stem two concentric wheels of dierent diameters, whereby to convey motion Vl'rom the stem to the spring and hands. These wheels are preferably secured together upon a single arbor, and are movable laterally to and from the stem, so the stem-wheel will mesh with one of said wheels when in the winding position and with the other when in the setting position. rIlhe larger ol" these wheels is utilized to communicate motion both to the mainspring-shaft and the handshaft, as it meshes in one position with the pinion connected with the former and in the other position with a pinion connected with the latter, suoli connecting-pinions being located in different planes. The lateral movements of the concentric wheels maybe caused in one direction by the longitudinal movement of the stem, and in the return direction by a spring.

rIhe invention consists in the combination of a longitudinally-adjustable winding-stein, the late ally-movable wheels, one engaging with the stem-wheel when in one position and the other engaging therewith when in the other position, and connecting-wheels meshing with said movable wheels and carrying motion to the spring-shaft and hands, as desired, respectively.

The invention further consists in a'windingstem, longitudinally adjustable, as set forth, combined with laterally-movable wheels with which, respectively, thestem-wheel meshes, as set forth, and through which motion is conveyed 'from the stem to the winding or the setequivalent device l'orshii'ting said wh eels when the watch is to be set.

rIhe invention consists in a windingstem longitudinally adjustable, as set forth, combined with laterally-movable wheels which respectively mesh with the stem-wheel in the two positions and a lever for shifting said wheels, so located relative to the stem as to be actuated thereby when the latter is adjusted.

The invention :further consists in the novel construction, arrangement, and combinations of parts hereinafter set forth, and pointed out vin the claims.

In the drawings which form a part of this specification, and in which similar letters of reference indicate like parts, Figure lis a side View of a watch-inoveiiieiit to which my invention has been applied, and Fig. 2 is a similar View with the wheels removed. Figs. 3 and 4- are partial sections on the line 3 3 of Fig. 1, the iirst section showing the parts in position to wind and the second in position to set. Fig. 5 is a section on the line 5 5 of Fig. l. Fior. 6 is a detail of the laterally-movable wheels. Fig. 7 isa detail, in perspective,vof the spring for returning the movable wheels to the winding position after the watch has been sert. Figs. 8 and 9 show i'nodiications of the movable wheels, which may he employed.

ln the drawings, A A represent the side plates of a time-movement. r

B I3 represent the longitudinally-adjustable winding-stem.

C is a bridge supporting a bearing, C', in which the stem revolves.

b is the usual toothed wheel carried by the stem. D D are the movable wheels, meshing at different times with said wheel b, and having different diameters and a common arbor, d. The inner and smaller of these wheels, D',

may be formed, as shown, of a simple toothed rim secured to the side oi' the larger wheel, D, or it may be a solid toothed disk like the latter.

The outer and larger wheel, D, meshes in its different positions with connecting-gears E ting mechanism, as desired, and a lever or and F, the former carrying motion to the mainspring-shaft and the latter to the hands. These gears E and F are in different planes, as shown, and the movable wheels are given a slight lateral movement to insure engagement there` with, as follows: Below the stern-and in its path is located a rocking lever, G, stationarily pivoted at g, with the upper limb of which the stem comes in contact when moved inward, and rocks said lever 'from the posit-ion in Fig. 4 to that'shown in Fig. 3. This rocking of the lever G by the stem slides the arbor d outward, thereby disengaging both wheel b and wheel F from gear D, and causing the meshing of wheel Z) with wheel D and of wheel D with gear E. The parts are now in the normal or winding position, and are held therein by the spring H, encircling the stem and pressing downward upon the wheel b.

XVhen the connection is to be shifted to enable the watch to be set, the stein is pulled outward against the spring H, thereby freeing the rocking lever and enabling the arbor d to move inward in obedience to a spring, I, which is coniined between the bridge-guard .I and the wheel D, as shown. rlhe outward movement of the stem disengages the stem-wheel and wheel D, and the inward movement of arbor d brings both the stem-wheel and the settingwheel F into mesh with wheel D, thereby bringing the parts into the setting position. W'hen the setting has been done, the stem is pushed in again, and the parts return to the position first described and shown in Figs. 3 and 5.

rPhe spring H should be of sufficient strength to control spring I. The side plate should be recessed, preferably, to receive the wheel D.

rlhe wheels D and D may be made as a single wheel, one form oi' the single wheel being shown in Fig. S with one set of spur-teeth, D, and one set of crown-teeth, D, and another form being shown at Fig. 9 with a single set of bevel-teeth, D2. In these modifications the spur-teeth in the one ease or the outer portion of the bevel-teeth in the other case engage with the stem-wheel when in its outer position, while the crown-teeth or the inner end of the bevel-teeth engage therewith in its inner position. rlhe outer portion of the bevel-teeth also engages with the connecting-wheels, thus discharging all the functions of wheel D.

I claiml. The "combination, in a watch or clock, of a longitudinally-adjustable winding-stem, a laterally-movable wheel or wheels engaging with the stem-wheel in one position for winding and in the other for setting, and connecting-wheels for carrying motion to the springshaft and hands, substantially as speciiied.

2. The winding-stem longitudinally ajustable, as set forth, combined with a laterallymovable wheel or wheels meshing with the stem-wheel and carrying motion to the winding and setting'trains, respectively, and a lever for shifting said wheel or wheels, substantially as set forth.

3. The winding-stem longitudinally adjustable, as set forth, combined with a laterallymovable wheel or wheels meshing with the stem-wheel and carrying motion to the winding and setting trains, respeetively,and a lever operated by the stem for shifting said gears, substantially as specified.

4. The winding-stein longitudinally adjustable, as set forth, andthe wheel or wheels mounted upon a shifting axis, inv combina-tion with the lever for shifting the wheel or wheels in one direction and the spring i'or shifting it or theni in the other direction, substantially as set forth.

5. The spring-depressed longitudinally-znljustable winding-stein and stem-wheel, in coinbination with the shifting wheel or wheels and the spring I, substantially as speeilied.

(i. The co1nbination,wilhthelongitudinallyadjustable stem and stem-wheel and the laterally-movable wheel or wheels, of the connecting-gears E and F, located in different planes, substantially as speciiied.

'7. The combination, with the stein and its wheel, adjustable as set forth, oi' the laterallymovable wheels D D, having different diameters and a common arbor, or .the equivalent ol' such wheels, substantially as specified.

JOSEPH BACHNER.

lit-nesses:

I-I. M. MUNDA-ir, EDw. S. Evin'rs. 

